Fixed bridges without soldering

Abstract

Abstract The construction of fixed bridges can be accomplished satisfactorily by casting the entire gold structure (retainers and pontics) in one piece, thus eliminating soldering. For this purpose the teeth to be replaced are first molded on a study cast. An alginate impression of the involved part of the study cast is made. This is then filled with self-curing acrylic and placed directly in the patient's mouth, or over an accurate working cast. The first method is more inconvenient for the patient; the modification, on the other hand, relies completely upon the accuracy of the working cast. The acrylic pattern obtained is, in either case, given its final shape by making the necessary adjustments on the cast. This pattern is cast in gold. The resulting bridge is in no way inferior to one produced by any other method. Naturally, the procedure offers many possibilities of error, but since there is no soldering, errors which may result from it are impossible. There is definitely a need for more bridgework to be done by this method before final judgment is passed. However, even after the relatively short time in which the technique has been used, it can be safely stated that it has definite advantages to offer. There is a considerable amount of time saved. Weak spots in the form of soldered joints are eliminated. The procedure permits restoration of the dentition to its original form, thus avoiding interference with physiologic functional movements. The need for occlusal grinding is also minimized.